kernel/arch/csky/include/asm/pci.h, branch linux-rolling-stable

asm-generic: Add new pci.h and use it

2022-07-22T22:34:57Z

The asm/pci.h used for many newer architectures share similar definitions. Move the common parts to asm-generic/pci.h to allow for sharing code. Suggested-by: Arnd Bergmann Link: https://lore.kernel.org/lkml/CAK8P3a0JmPeczfmMBE__vn=Jbvf=nkbpVaZCycyv40pZNCJJXQ@mail.gmail.com/ Link: https://lore.kernel.org/r/20220722214944.831438-5-shorne@gmail.com Signed-off-by: Stafford Horne Signed-off-by: Bjorn Helgaas Reviewed-by: Arnd Bergmann Acked-by: Pierre Morel Acked-by: Geert Uytterhoeven

csky: PCI: Define ARCH_GENERIC_PCI_MMAP_RESOURCE

2022-07-22T22:26:10Z

This looks to be something that was accidentally left out on the csky port. Define ARCH_GENERIC_PCI_MMAP_RESOURCE to keep it inline with other ports. Adding ARCH_GENERIC_PCI_MMAP_RESOURCE enables the definition of modern pci_mmap_resource_range() functions which is generally what new ports should be using. Link: https://lore.kernel.org/r/20220722214944.831438-4-shorne@gmail.com Signed-off-by: Stafford Horne Signed-off-by: Bjorn Helgaas Acked-by: Guo Ren

PCI: Move isa_dma_bridge_buggy out of asm/dma.h

2022-07-22T22:24:47Z

The isa_dma_bridge_buggy symbol is only used for x86_32, and only x86_32 platforms or quirks ever set it. Add a new linux/isa-dma.h header that #defines isa_dma_bridge_buggy to 0 except on x86_32, where we keep it as a variable, and remove all the arch- specific definitions. [bhelgaas: commit log] Suggested-by: Arnd Bergmann Suggested-by: Christoph Hellwig Link: https://lore.kernel.org/r/20220722214944.831438-3-shorne@gmail.com Signed-off-by: Stafford Horne Signed-off-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig Acked-by: Geert Uytterhoeven

PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h

2022-07-22T22:23:45Z

pci_get_legacy_ide_irq() is only used on platforms that support PNP, so many architectures define it but never use it. Replace uses of it with ATA_PRIMARY_IRQ() and ATA_SECONDARY_IRQ(), which provide the same functionality. Since pci_get_legacy_ide_irq() is no longer used, remove all the architecture-specific definitions of it as well as asm-generic/pci.h, which only provides pci_get_legacy_ide_irq() [bhelgaas: commit log] Co-developed-by: Arnd Bergmann Link: https://lore.kernel.org/r/20220722214944.831438-2-shorne@gmail.com Signed-off-by: Arnd Bergmann Signed-off-by: Stafford Horne Signed-off-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig Acked-by: Geert Uytterhoeven Acked-by: Pierre Morel Acked-by: Rafael J. Wysocki

csky: Add PCI support

2020-02-21T07:43:25Z

Add the pci related code for csky arch to support basic pci virtual function, such as qemu virt-pci-9pfs. Signed-off-by: MaJun Signed-off-by: Guo Ren